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"WHY SHOULD I HAVE AN EYE EXAM?"
An eye exam allows the optometrist to do the following in
order to make sure your eyes are at their healthiest:
• Determine any relevant prescription for your eyes (long
or short-sighted, astigmatic,
presbyopic).
• Check the muscles in the eyes to
make sure they are functioning properly.
• Check your eye health and screen
for any associated general health problems.
• Perform any further testing as
deemed necessary like eye pressures, visual fields, colour vision
or pupil dilation
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"HOW DO 2020 EYE EXAMS WORK?"
ELECTRONIC PRE-TEST
Before you are visited with one of our 2020 optometrists,
you will experience an electronic
pre-test, which involves looking into an instrument
showing a target in the distance. This target, which is
generally a balloon, goes in and out of focus. In this
process, the curvatures of your corneas (front part of the
eye), the distance between your eyes, and the best estimate
of your prescription are measured.
This shows how steep or flat the fronts of your eyes are.
This data is sent directly to the optometrist's computerized
sight-test equipment in their consulting room. Furthermore,
should you wish to try contact
lenses, this is instantly possible since your corneal
curvatures have already been measured.
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OPTOMAP RETINAL SCAN
At 2020, we believe that everyone should receive the
benefits of a thorough health check of the back of their
eyes. This is why we were the first store to have provided
the Optomap Retinal Scan as
part of our standard eye exam.
To take your Optomap,
you will be asked to look into a scanning instrument at a
spot of green surrounded by a circle of red. When the red
circle is seen, the Optomap
photo is taken in under a second. This photo allows us to
view much more of the retina compared to conventional
methods and extends the area seen to about 200 degrees. Optomap
can also detect early signs of both eye-related and general
health related problems, such as Diabetic Retinopathy,
Hypertension (High Blood Pressure), and Age Related Macular
Degeneration (AMD).
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THE SIGHT TEST AND EYE HEALTH CHECK
This is the bit where you meet your 2020 optometrist, who
will ask you questions to establish reasons for your visit
and what symptoms you may be experiencing with your eyes. An
inquiry into your general health, medications taken, family
health and eye history are quite normal and essential as
many factors can affect your eyes. Your prescription will
then be determined after the data from the electronic
pre-test has been entered into the computerized
testing unit, which is also known as a phoropter.
You will also look at a succession of test charts through
various lenses placed into the unit, which will determine
whether you are long-sighted,
short-sighted,
astigmatic,
presbyopic,
or a combination of these. The equipment also enables us to
check your eye muscles to make sure they are working
together properly. Using an ophthalmoscope and a microscope,
our optometrists can assess your eye health all the way from
the back to the front.
Extra tests like Depth Perception, Colour Vision, and Visual
Fields may be required and your optometrist will
inform you if this is necessary.
At the end of the consultation your optometrist will discuss
your sight and eye health with you as well as all the
options available if treatment is required. Please feel free
to ask your 2020 optometrist anything, as it is our aim
that you leave feeling reassured and happy!
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PRESSURE TEST
2020 uses a non-contact Tonometer, which measures eye
pressure. It works by allowing a gentle puff of air onto the
front of your eye, which changes the shape very briefly. At
a certain level of shape change, the instrument is
calibrated to represent a certain level of pressure. By
means of a system of lights, it measures how long it takes
for your eye to change to the calibrated shape. This time
taken is proportional to your eye pressure. It then does a
math trick and out pops your eye pressure reading in a
matter of seconds! As it is a non-contact instrument it is
completely sterile and no risk of infection exists at all.
The eye pressure test is part
of our standard eye exam and is performed on all patients.
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VISUAL FIELD TEST
At 2020, our visual field tests
are similar to a fun game of space invaders. The only
difference is that you have to keep your eye in one place
the whole time. Each time you think you see a spot of light
you will hit a button. The purpose of field-testing is to
check your peripheral vision, which may be affected in some
cases.
The most common eye condition causing field loss is Chronic
Glaucoma. Sometimes more serious conditions like pituitary
tumors may be caught by having a field test. In this case,
the field test could be a lifesaver.
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